Line Control is a proven concept in telescoping whisker pole design and available only on Forespar Whisker Poles. Line Control poles are heavy duty two section aluminum spars which can be extended up to 27' by simply un-cleating the line at the inboard end, extending or retracting the pole to the desired length and re-cleating the line. This adjustment process is quick and easy, even with the largest pole, and is executed with the operator positioned safely at the mast.